MM1291AF Datasheet PDF - MITSUMI Protection of Lithium Ion Batteries (one cell) Specs

MM1291AF - Protection of Lithium Ion Batteries (one cell)

Datasheet Summary

Description

Pin NO.

NAME GND I/O Input connected between VIN-GND.

Nch-FET gate connection pin for discharge control.

Features

1. 2. 3. 4. 5. Current consumption (during overcharging) Current consumption (normal) Current consumption (during excess discharge) Consumption current (during excess discharge) Overcharge detection voltage (Ta=-20°C~+70°C) VCC=4.5V VCC=3.5V VCC=1.9V VCC=1.0V VCC pin 40µA typ. VCC pin 7µA typ. 0.7µA typ. 0.17µA max. A 4.35V±50mV B 4.25V±50mV C 4.10V±50mV A 200mV typ. B 200mV typ. C 27mV typ. 1S typ. 2.6V±0.1V 2.4V±0.1V 2.9V±0.12V 10mS typ. A 100mV±10mV B 100mV±10mV C 150mV±15mV load release 10mS.

Datasheet Details

Part number	MM1291AF
Manufacturer	MITSUMI
File Size	172.83 KB
Description	Protection of Lithium Ion Batteries (one cell)
Datasheet	MM1291AF Datasheet
Additional preview pages of the MM1291AF datasheet.

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Full PDF Text Transcription

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MITSUMI Protection of Lithium Ion Batteries (one cell) MM1291 Protection of Lithium Ion Batteries (one cell) Monolithic IC MM1291 Outline This is a protection IC for one-cell series that protects lithium ion batteries during excess charging, discharging, or overcurrent. If abnormalities occur during charging and excess voltage is applied, it has a function that turns off the external FET switch when voltage is applied to each battery beyond a specified time (overcharging detection). It also has a function that turns off the external FET switch when the voltage for each battery falls below a set voltage, to prevent excess discharge when discharging the battery (discharging detection). At that time, the IC is switched to low current consumption mode.

Published: May 7, 2005 |